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Synonyms

psychotic

American  
[sahy-kot-ik] / saɪˈkɒt ɪk /

adjective

  1. Psychiatry. relating to, characterized by, or exhibiting psychosis: psychotic symptoms;

    a psychotic patient;

    psychotic symptoms;

    psychotic delusion.

    Synonyms:
    non compos mentis, demented, deranged, disturbed, mad, mentally ill, psychopathic, insane
    Antonyms:
    lucid, rational, compos mentis, sane
  2. (loosely) mentally unstable.

    The man who threw a stone through the convenience store window must be psychotic.

    Synonyms:
    potty, screwy, batty, daft, cuckoo, kooky, bonkers, nuts, nutty, crazy, loony
  3. intensely upset, anxious, or angry; crazy.

    My dad gets so psychotic when I come home even a little bit late.

    Synonyms:
    pissed off, livid, incensed, irate, wrathful, furious, crazed
    Antonyms:
    self-possessed, calm

noun

  1. Psychiatry. a person afflicted with psychosis.

    Synonyms:
    maniac, madman, psychopath
  2. (loosely) someone who is mentally unstable.

    Her partner is a psychotic who often uses abusive language.

    Synonyms:
    kook, nutjob, nut, loon, loony
  1. someone who exhibits extreme emotion or behavior.

    My brother turns into a complete psychotic whenever his team loses.

    Synonyms:
    psycho, maniac
psychotic British  
/ saɪˈkɒtɪk /

adjective

  1. of, relating to, or characterized by psychosis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

noun

  1. a person experiencing psychosis

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Usage

It is preferable to talk about a person experiencing psychosis rather than a psychotic , which reduces a person's individuality

Other Word Forms

  • nonpsychotic adjective
  • psychotically adverb
  • semipsychotic adjective
  • unpsychotic adjective

Etymology

Origin of psychotic

First recorded in 1885–85; psych(osis) + -otic

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In 1925, Routledge suffered a psychotic crisis from which she never recovered.

From The Wall Street Journal • Feb. 20, 2026

That so many people in Minneapolis have endangered themselves by waving phones in the faces of armed federal officers and shouting obscenities as if they were psychotic is one of many unhappy consequences.

From The Wall Street Journal • Jan. 28, 2026

As much as he may have appeared psychotic, he was also romantic.

From Los Angeles Times • Jan. 23, 2026

Standard anti-nausea medications often do not work reliably, he said, which sometimes forces clinicians to turn to second and third-line options such as Haldol, a medication more commonly used for psychotic episodes.

From Science Daily • Nov. 27, 2025

She felt it again—that familiar shiver, as if a psychotic snowman had crept up behind her and was breathing down her neck.

From "The Mark of Athena" by Rick Riordan